SparcStation 5 died?

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marmotta
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SparcStation 5 died?

Unread postby marmotta » Thu Oct 27, 2016 4:04 am

Anyway to fix it? Or the only way is trash the motherboard? :(

Serial console of my Sparcstation 5-170
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dexter1
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Re: SparcStation 5 died?

Unread postby dexter1 » Thu Oct 27, 2016 4:12 am

ecache = external cache, i presume?

It all depends if that cache is the secondary cache on the processor-module (or -die) or part of the mainboard.
Looks like a single bit flipped or stuck at address 0x40000 = 256kbyte
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marmotta
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Re: SparcStation 5 died?

Unread postby marmotta » Thu Oct 27, 2016 4:17 am

The sparcstation 5-170 have 256k of cache soldered on motherboard.

Edit: the cache is 512kb

marmotta
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Re: SparcStation 5 died?

Unread postby marmotta » Fri Oct 28, 2016 1:29 am

SparcStation 5 not have a hidden jumper for disable or limiting the L2 cache? And if I desolder one or more chip?

marmotta
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Re: SparcStation 5 died?

Unread postby marmotta » Fri Oct 28, 2016 5:41 am

I have removed two cache chip! Now the sparcstation work and boot! ...but I continue to have a error on diagnostic, the openboot remain convinced of th e system have 512kb but I have physically only 256kb. How I set the cache size?

marmotta
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Re: SparcStation 5 died?

Unread postby marmotta » Fri Oct 28, 2016 9:17 am

Cache removed :-)

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